| 摘要 |
An apparatus (140, 200, 300, 500) for feeding a wire The apparatus includes at least one pair of rotatable rollers (221, 222, 223, 224, 321, 322, 531, 532, 541, 542) and at least one curved or curvable force-generating element like a curved spring- type mechanism (510, 520). The at least one curved or curvable force-generating element is capable of applying a force via a proximal end of the at least one curved or curvable force-generating element to displace a first roller of the at least one pair of rotatable rollers towards a second roller of the at least one pair of the rotatable rollers to engage a wire there between. The apparatus further includes an adjustment mechanism (580) operationally connected at a distal end of the at least one curved or curvable force-generating element to allow adjustment of the applied force. |
